Seattle Mariners vs Houston Astros Prediction 8/16/2026 Today’s MLB Picks

The Seattle Mariners and the Houston Astros meet Sunday in MLB action from Daikin Park. We will look at this from a betting perspective and determine the best bets for this game. Here’s a Seattle Mariners vs. Houston Astros prediction.

Starting Pitching Matchup

The Seattle Mariners will send out Bryan Woo for the start here and Woo is 8-8 with a 4.15 ERA and 132 strikeouts this season. Hunter Brown will start for the Astros and is 3-2 with a 3.68 ERA and 67 strikeouts this season.

Seattle Mariners Recap

The Seattle Mariners come into this game looking to add on to their 10-5 win over Houston on Saturday to sit at 58-66 this season. After this series, the Mariners will head on the road for a series against the Milwaukee Brewers.

Mariners Alternate Wins & Losses In 4 Straight

Going into Saturday, Luke Raley has 15 home runs and 39 RBIs this season. Cole Young’s added 116 hits with 15 doubles, 3 triples, 14 home runs and 52 RBIs and Cal Raleigh has 51 hits with 8 doubles, 12 home runs and 43 RBIs as well this season. Randy Arozarena has 118 hits with 25 doubles, 16 home runs and 52 RBIs as well on the year. Josh Naylor also has 117 hits with 10 home runs and 44 RBIs as well on the year. Julio Rodriguez has also added 112 hits with 17 doubles, 19 home runs and 52 RBIs.

Houston Astros Recap

The Houston Astros come into this game looking to bounce back from their loss at the hands of Seattle on Saturday to fall to 63-61 on the year. After this series, the Astros will take on the Angels in a series at home.

Astros Have Two-Game Win Streak Snapped

Entering Saturday, Yordan Alvarez has 142 hits with 25 doubles, 36 home runs and 88 RBIs while Christian Walker has 104 hits with 24 doubles, 23 home runs and 70 RBIs on the year. Jose Altuve’s chipped in 91 hits with 15 doubles, 13 home runs and 35 RBIs and Isaac Paredes has 109 hits with 21 doubles, 15 home runs and 65 RBIs. Cam Smith also has 89 hits with 15 doubles, 16 home runs and 45 RBIs.

Seattle Mariners @ Houston Astros Betting Trends: August 16, 2026

• Probable Starting Pitcher: Hunter Brown      Record this season: 3-2      ERA: 3.68
• Home Record: 2-1
• Last 5 against Mariners: 1-2

Why the Houston Astros will win

• The Mariners have lost each of their last eight games following a road win.
• The Astros have won nine of their last 10 night games following a home loss.
• The Mariners have failed to cover the run line in each of their last nine games following a road win.
• The Astros have covered the run line in seven of their last eight night games at Daikin Park following a home loss.
• The Mariners have lost the first inning in five of their last six games against AL West opponents.
• The Astros have led after 5 innings in six of their last seven night games at Daikin Park against AL West opponents.
• The Astros have led after 3 innings in four of their last five games against AL West opponents.

• Probable Starting Pitcher: Bryan Woo      Record this season: 8-8      ERA: 4.15
• Road Record: 1-8
• Last 5 against Astros: 3-2

Why the Seattle Mariners will win

• The Mariners have won 16 of their last 20 games as underdogs against AL West opponents.
• The Astros have lost four of their last five games as home favorites against the Mariners following a loss.
• The Astros have failed to cover the run line in each of their last 11 Sunday night home games.
• The Mariners have covered the run line in 18 of their last 20 games as underdogs against AL West opponents.
• The Mariners have led after 3 innings in each of their last seven Sunday games against the Astros.
• The Mariners have won the first inning in three of their last four games against the Astros.
• The Mariners have led after 5 innings in nine of their last 10 games at Daikin Park.

Total Runs Facts

• Each of the Mariners’ last seven road games against AL West opponents have gone OVER the total runs line.
• Each of the Astros’ last six games against AL West opponents have gone OVER the total runs line.
• There has been at least one run scored in the first inning in each of the Mariners’ last seven road games against AL West opponents.
• There has been no run scored during the first inning in each of Hunter Brown’s last five appearances as a starter.

Houston Astros Player Prop Facts

• Yainer Diaz has hit a home run in three of his last four appearances with the Astros as favorites against AL West opponents.
• Hunter Brown has recorded seven or more strikeouts in three of his last four appearances against the Mariners.
• Jose Altuve has recorded two or more hits in each of the Astros’ last eight games against AL opponents that held a losing record.
• Yordan Alvarez ranks 1st amongst qualified players for Batting Average (.321) this season.

Seattle Mariners Player Prop Facts

• Randy Arozarena has hit a home run in four of the Mariners’ last seven road games against AL opponents.
• Bryan Woo has recorded a win in three of his last four appearances against AL West opponents.
• Josh Naylor has recorded at least one hit in each of his last 13 appearances with the Mariners as road underdogs.

Matchup/League Facts

• The Astros rank 29th in the league for steals this season (40).
• The Astros rank 29th in the league for walks allowed this season (510).
• The Mariners rank 30th in the league for runs scored this season (486).
• The Mariners rank 30th in the league for doubles this season (149).

Seattle Mariners vs. Houston Astros Prediction

I’m on the Astros in this one. It was encouraging to see Bryan Woo have a decent road start for once, but I’m still not buying it after one good outing in all honesty. The Astros are still the better tea playing better baseball over the last couple of months and I look for them to show up in this game and win the series to take another step in creating distance in the AL West race. Give me Houston.

Chris Ruffolo's Pick: Houston -115